﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using DTcms.DBUtility;
using DTcms.Common;

namespace DTcms.DAL
{
	/// <summary>
	/// 数据访问类:ch_gongqiu_log
	/// </summary>
	public partial class gongqiu_log
	{
		public gongqiu_log()
		{ }
		#region 基本方法============================
		/// <summary>
		/// 是否存在该记录
		/// </summary>
        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from ch_gongqiu_log");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }
		
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Model.gongqiu_log model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into ch_gongqiu_log(");
            strSql.Append("class_id,article_id,user_id,add_time)");
            strSql.Append(" values (");
            strSql.Append("@class_id,@article_id,@user_id,@add_time)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@class_id", SqlDbType.Int,4),
					new SqlParameter("@article_id", SqlDbType.Int,4),
					new SqlParameter("@user_id", SqlDbType.Int,4),
					new SqlParameter("@add_time", SqlDbType.DateTime)};
						
			parameters[0].Value = model.class_id;            			
			parameters[1].Value = model.article_id;            			
			parameters[2].Value = model.user_id;            			
			parameters[3].Value = model.add_time;            
            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }

		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(Model.gongqiu_log model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update ch_gongqiu_log set ");
			                                                
            strSql.Append("class_id = @class_id,");                                    
            strSql.Append("article_id = @article_id,");                                    
            strSql.Append("user_id = @user_id,");                                    
            strSql.Append("add_time = @add_time");            			
			strSql.Append(" where id=@id");
			SqlParameter[] parameters = {
			            new SqlParameter("@id", SqlDbType.Int,4) ,            
                        new SqlParameter("@class_id", SqlDbType.Int,4) ,            
                        new SqlParameter("@article_id", SqlDbType.Int,4) ,            
                        new SqlParameter("@user_id", SqlDbType.Int,4) ,            
                        new SqlParameter("@add_time", SqlDbType.DateTime)             
            };
						            
            parameters[0].Value = model.id;                        
            parameters[1].Value = model.class_id;                        
            parameters[2].Value = model.article_id;                        
            parameters[3].Value = model.user_id;                        
            parameters[4].Value = model.add_time;                        
            int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		
		/// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from ch_gongqiu_log ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from ch_gongqiu_log ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }

            int rows = Convert.ToInt32(DbHelperSQL.GetSingle(strSql.ToString()));
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
		
        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Model.gongqiu_log GetModel(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select top 1 id,class_id,article_id,user_id,add_time");
            strSql.Append(" from ch_gongqiu_log");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

            Model.gongqiu_log model = new Model.gongqiu_log();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                return DataRowToModel(ds.Tables[0].Rows[0]);
            }
            else
            {
                return null;
            }
        }
        
        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" id,class_id,article_id,user_id,add_time");
            strSql.Append(" FROM ch_gongqiu_log ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }
        
        /// <summary>
        /// 获得查询分页数据
        /// </summary>
        public DataSet GetList(int pageSize, int pageIndex, string strWhere, string filedOrder, out int recordCount)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select * FROM ch_gongqiu_log");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            recordCount = Convert.ToInt32(DbHelperSQL.GetSingle(PagingHelper.CreateCountingSql(strSql.ToString())));
            return DbHelperSQL.Query(PagingHelper.CreatePagingSql(recordCount, pageSize, pageIndex, strSql.ToString(), filedOrder));
        }
        #endregion
        
        #region 扩展方法============================
        /// <summary>
        /// 返回标题名称
        /// </summary>
        public string GetTitle(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select top 1 title from ch_gongqiu_log");
            strSql.Append(" where id=" + id);
            string title = Convert.ToString(DbHelperSQL.GetSingle(strSql.ToString()));
            if (string.IsNullOrEmpty(title))
            {
                return "-";
            }
            return title;
        }

        /// <summary>
        /// 修改一列数据
        /// </summary>
        public void UpdateField(int id, string strValue)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update ch_gongqiu_log set " + strValue);
            strSql.Append(" where id=" + id);
            DbHelperSQL.ExecuteSql(strSql.ToString());
        }

        /// <summary>
        /// 返回数据总数
        /// </summary>
        public int GetCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(*) as H from ch_gongqiu_log ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return Convert.ToInt32(DbHelperSQL.GetSingle(strSql.ToString()));
        }

        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Model.gongqiu_log DataRowToModel(DataRow row)
        {
            Model.gongqiu_log model = new Model.gongqiu_log();
            if (row != null)
            {
                if (row["id"] != null && row["id"].ToString() != "")
                {
                    model.id = int.Parse(row["id"].ToString());
                }
                if (row["class_id"] != null && row["class_id"].ToString() != "")
                {
                    model.class_id = int.Parse(row["class_id"].ToString());
                }
                if (row["article_id"] != null && row["article_id"].ToString() != "")
                {
                    model.article_id = int.Parse(row["article_id"].ToString());
                }
                if (row["user_id"] != null && row["user_id"].ToString() != "")
                {
                    model.user_id = int.Parse(row["user_id"].ToString());
                }
                if (row["add_time"] != null && row["add_time"].ToString() != "")
                {
                    model.add_time = DateTime.Parse(row["add_time"].ToString());
                }
            }
            return model;
        }
        #endregion
	}
}
